diff --git a/framework/src/main/java/org/tron/core/services/RpcApiService.java b/framework/src/main/java/org/tron/core/services/RpcApiService.java
index 2e3994c3250..c5077facf6f 100755
--- a/framework/src/main/java/org/tron/core/services/RpcApiService.java
+++ b/framework/src/main/java/org/tron/core/services/RpcApiService.java
@@ -2475,9 +2475,13 @@ public void createShieldedContractParameters(
         ShieldedTRC20Parameters shieldedTRC20Parameters = wallet
             .createShieldedContractParameters(request);
         responseObserver.onNext(shieldedTRC20Parameters);
+      } catch (ZksnarkException | ContractValidateException e) {
+        responseObserver.onError(getRunTimeException(e));
+        logger.info("createShieldedContractParameters: {}", e.getMessage());
+        return;
       } catch (Exception e) {
         responseObserver.onError(getRunTimeException(e));
-        logger.info("createShieldedContractParameters exception caught: " + e.getMessage());
+        logger.error("createShieldedContractParameters: ", e);
         return;
       }
       responseObserver.onCompleted();
@@ -2518,9 +2522,13 @@ public void scanShieldedTRC20NotesByIvk(
             request.getNk().toByteArray(),
             request.getEventsList());
         responseObserver.onNext(decryptNotes);
+      } catch (BadItemException | ZksnarkException e) {
+        responseObserver.onError(getRunTimeException(e));
+        logger.info("scanShieldedTRC20NotesByIvk: {}", e.getMessage());
+        return;
       } catch (Exception e) {
         responseObserver.onError(getRunTimeException(e));
-        logger.info("scanShieldedTRC20NotesByIvk exception caught: " + e.getMessage());
+        logger.error("scanShieldedTRC20NotesByIvk:", e);
         return;
       }
       responseObserver.onCompleted();